gistfile1.js

(function($,window, undefined){
    module("sticky scroll unit tests",{
        "setup":function(){
            this.$el.get(0).getBoundingClientRect = function(){
                return {left:100,top:100};
            }
        },
        "setupSpies":function($el){
            var plugin = this.getStickyScrollPlugin($el);
            plugin.elementScrolledOff = sinon.spy();
            plugin.elementScrolledOn = sinon.spy();
        }
    });
    test("if element is scrolled off viewport, plugin elementScrolledOff method is called", function(){
        this.$el.stickyScroll();
        var plugin = this.getStickyScrollPlugin(this.$el);
        this.setupSpies(this.$el);
        var event = jQuery.Event("scroll");
        event.target = $({scrollTop:101});
        $(window).trigger(event);
        equals(plugin.elementScrolledOff.called, true);
        equals(plugin.elementScrolledOn.called, false);
    });
})(window.jQuery,window);